code: def get_connection_info(
      connection_file: str | None = None, unpack: bool = False
  ) -> str | dict[str, Any]:
      """Return the connection information for the current Kernel.
  
      Parameters
      ----------
      connection_file : str [optional]
          The connection file to be used. Can be given by absolute path, or
          IPython will search in the security directory.
          If run from IPython,
  
          If unspecified, the connection file for the currently running
          IPython Kernel will be used, which is only allowed from inside a kernel.
  
      unpack : bool [default: False]
          if True, return the unpacked dict, otherwise just the string contents
          of the file.
  
      Returns
      -------
      The connection dictionary of the current kernel, as string or dict,
      depending on `unpack`.
      """
      cf = _find_connection_file(connection_file)
  
      with open(cf) as f:
          info_str = f.read()
  
      if unpack:
          info = json.loads(info_str)
          # ensure key is bytes:
          info["key"] = info.get("key", "").encode()
          return info  # type:ignore[no-any-return]
  
      return info_str
  
file_path: catboost/contrib/python/ipykernel/py3/ipykernel/connect.py
imports: from __future__ import annotations
  import json
  import sys
  from subprocess import PIPE, Popen
  from typing import TYPE_CHECKING, Any
  import jupyter_client
  from jupyter_client import write_connection_file
label_desc: Use image node_id 3 for calling a global function with example usage: get_connection_info(connection_file, unpack) and returns: info_str, info